Good article!
"What all of these essentially mean is that the CX650 can completely deliver all the latest 4K streaming content from sources like Netflix, Amazon Prime, Ultraflix and others while also being fully compatible with 4K content from set-top box sources like Sony’s 4K media player and others. This content can be accessed through the HDMI 2.0 connections on the TV."
http://4k.com/tv/a-review-of-the-panasonic-4k...50-series/
"What all of these essentially mean is that the CX650 can completely deliver all the latest 4K streaming content from sources like Netflix, Amazon Prime, Ultraflix and others while also being fully compatible with 4K content from set-top box sources like Sony’s 4K media player and others. This content can be accessed through the HDMI 2.0 connections on the TV."
http://4k.com/tv/a-review-of-the-panasonic-4k...50-series/